7874a8d103
Following OpenStack Style Guidelines[1]: http://docs.openstack.org/developer/hacking/#unit-tests-and-assertraises [H203] Unit test assertions tend to give better messages for more specific assertions. As a result, assertIsNone(...) is preferred over assertEqual(None, ...) Change-Id: I8cbac0ae6eeddd8d12c2652acff16a370f2066bb